Music-leaf turner.



No. 887,334. PATENTED MAY 12, 1908. A. H. LAMB.

MUSIC LEAF TURNER. APPLICATION FILED JUNE 28, 1907.

2 SHEETS-8HEBT I.

I I I I 3410mm m: NORRIS PETERS ca, WASHINGNN. c.

PATENTED MAY 12, .1908.

A. H. LAMB. MUSIC LEAF TURNER.

APPLICATION FILED JUNE 23. 1 so7.

2 SHEETS-SHEET 2.

&

dwuamtoz,

witnesses fliiLtlm,

m5 NORRIS PETERS cm, WASHINGTON 11.

AL H. LAMB, OF ELBON, PENNSYLVANIA.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented May 12, 1908.

Application filed June 28, 1907. Serial No. 381,344.

To all whom it may concern:

Be it known that I, AL H. LAMB, a citizen of the United States, residingat Elbon, in the county of Elk and State of Pennsylvania, have inventeda new and useful Music-Leaf Turner, of which the following is aspecification.

The invention relates to improvements in music leaf turners.

The object of the present invention is to improve the construction ofmusic leaf turners, more es ecially that shown and described in Patent,0. 729,944, granted to me June 2, 1903, and to provide a simple andcomparatively inex ensive construction, adapted to enable a urality ofsheets or leaves to be successive y turned, and capable, when operated,to turn the leaves in either direction of presenting to the front, inposition for 0 er ation, a set of finger pieces for moving the eafturning means in the opposite direction.

With theseand other objects in view, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawings, and pointed out in the claimshere to appended; it being understood that various changes in the form,proportion, size and minor details of constructlon, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawings :Figure 1 is afront elevation of a music leaf turner,constructed in accordance with this invention. Fig. 2 is a rearelevation of the same. Fig. 3 is a vertical sectional view, showing themusic leaf turner ap lied to a portion of a piano. Fig. 4 is an en argedvertical sectional view, illustrating the arrangement of the gearing foroscillating the leaf turning arms. Fig. 5 is a front elevation of thesame. Fig. 6 is a sectional view, taken substantially on the line rr ofFig. 5. Fig. 7 is a detail view, taken substantially on the line 'yy ofFig. 2.

Like numerals of reference designate corresponding parts in all thefigures of the drawlegs.

1 designates the back or body of the music leaf turner, which back orbody 1 may be constructed of any suitable material, such as wood ormetal, and it may be ornamented in any preferred manner. The music leafturner, which is designed for use on pianos and similar instruments, mayalso be advantageously employed in various other laces, where it isdesirable to turn sheets or eaves of music. In order to enable it to beconveniently mounted on a piano 2, as illustrated in Fig. 3 of thedrawings, it is provided at the bottom with a rear spring 3, constructedsubstantially the same as that shown in the said atent, and anadjustable bar 4 is also provic ed for engaging the upper portion of thepiano. The adjustable bar 4, which operates in a suitable guide 5, issecured in its adjustment by a set screw 6, and it is provided at itsupper end with a suitable head 7 for engaging under a projecting frontedge of the top of the piano. The guide 5 is composed of spaced sides orflanges suitably secured to the rear face of the back or body 1. Thisguide 5 is secured to the rear face of the back or body by means oftransverse straps or pieces 8, 9 and 10. The set screw is mounted on thetop strap or piece 8, and it' engages the adjacent si e or flange of theguide 5, a suitable threaded perforation being provided in the top strapor piece 8. The adjustable bar is adapted to be raised or lowered toenable the music-leaf turner to be securely mounted on a piano, orsimilar instrument. Any other suitable means may be employed formounting the music-leaf turner on either an instrument or a stand, aswill be readily apparent.

The music-leaf turner forms a music rack and for this purpose isprovided with side clamps 11, and a central clamp 12. The side clamps11, which are adapted to en age the front and rear leaves of a piece ofs eet music, or the front and rear portions of a music book, or thelike, are constructed of resilient wire, or other suitable material andextend upwardly and downwardly, as clearly illustrated in Fig. 1 of thedrawings. The lower terminals of the material of which the side clampsare constructed are bent to form eyes 13 to receive screws 14, or othersuitable fastening devices for securing the side clamps to the back orbody. The upper portions of the side clamps are adapted to be sprungaway from the back or body to permit the leaves or sheets of music to beplaced back of the side clamps in position to be engaged by the same. I

The central clamp consists of a pivoted rod or member, extendingupwardly from the lower portion of the back or body at the centerthereof and provided at its lower end with a head 15, through whichpasses a ivot 16, which is mounted in a substantial y U- shaped bracketor piece 17, secured to the front face of the back or body andconsisting of spaced sides and a connecting bottom portion. The spacebetween the sides of the bracket 17 registers with a slot 18 of the backor body and the head 15, which is beveled or rounded at the front, isprovided with a straight rear edge and is adapted to be engaged by aspring 19, whereby the central clamp is held either in or out ofengagement with the music. The s ring 19, which may consist of one or.more eaves, is secured to the rear face of the back or body and isprovided with a head 20 for engaging the head of the central clamp 12.The head 20 of the spring is beveled, as clearly shown in Fig. 3 of thedrawings, and the spring is of sufficient strength to maintain thecentral clamp firmly in engagement with the music, and it permits thecentral clamp to be readily swung downward to nearly a horizontalposition to enable a music book or piece of sheet music to be placed onor removed from the music-leaf turner. The back or body of themusic-leaf turner is also provided with a plurality of ins orprojections 20 to support the lower e ges of the leaves to relieve thecentral and side clamps of the weight of the music.

The leaves or sheets of music are swung from one side to the other ofthe back or body by means of a plurality of leaf turning arms 21 to turnthe sheets or leaves. The leaf turning mechanism is mounted on andcarried by a bearing bracket 22, which is detachably secured to the backor body of the music leaf turner by screws 23, and which may be readilyapplied to anymusicrack. The hearing bracket, which is composed of aback portion and top and bottom portions is provided with a transverselycurved front plate 24. The leaf turning arms, which are substantiallyL-shaped, are provided at the inner ends of their horizontal portionswith heads 25 and 25, having openings of progressively increasingdiameters to fit an inner central supporting shaft or spindle 26, and aplural ity of nested or telescoped tubular shafts or sleeves 27, 28, 29,and 30. The shaft or spindle and the sleeves are mounted in the bearingbracket, and the sleeves are successively terminated short of oneanother, as clearly illustrated in Fig. 4 of the drawings to permit theleaf turning arms to be arranged one upon another and to swing indifferent planes, so as not to interfere with one another. The shaft orspindle 26 extends beyond the sleeves, and the sleeve of the smallestdiameter is arranged on the shaft or spindle. Each sleeve turnsindependently of the other and the shaft or spindle rotatesindependently of the sleeves. The head 25 of the leaf turning arms isprovided with a set screw 31 for engaging the shaft or spindle 26, andother heads 25 are split to form clamping jaws, which are connected byscrews 31 The shaft or spindle and the tubular shafts or sleeves arepartially rotated to swing the arms from one side of the music leafturner to the other by means of pinions 32 and toothed segments 38. Thepinions, which are of the same diameter, are secured to the shaft and tothe sleeves and arranged in spaced relation. The toothed segments 33 aremounted on a spindle or pivot 34 and are provided with spaced sleeves 35to maintain them in proper position with relation to the spaced pinions.Each segment 33 is provided with ooposite arms 36, having finger pieces37 and located at opposite sides of the pivot and movable backwardly andforwardly in reverse direction, so that when the arm at one side of thesegment is moved rearwardly to swing the leaf turning arm in onedirection, the operating arm 36 at the opposite side of the segment willbe swun outwardly to the front of the bearing brac et and will be inposition for operation to move the leaf turning arm in the oppositedirection. By this arrangement one of the finger pieces of each leafturning arm will always be at the front in position for operation. Theoscillatory movements of the segments 33, which mesh with the pinions,partially rotate the same and operate the shafts to which the leafturning arms are connected. In swinging the music from right to left theentire set of leaf turning arms may be simultaneously operated, and asthe operating arms and their finger ieces are arranged at differentelevations, t e leaf turning arms may be successively actuated withrapidity and certainty. The curved front plate 24 of the bearing bracketis provided with opposite slots 38 to receive the operating arms.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. In a device of the ,class described, the combination with a back orbody provided with a spindle, of a plurality of leaf turning armsprovided with heads arranged on the said spindle, a plurality of pinionsalso mounted on the said spindle and connected with the said heads, aseparate spindle or shaft mounted on the back or body, and toothedsegments mounted on the last mentioned sha t or spindle and meshing withthe pinions, each segment being provided with a pair of operating armsrigid with and ex tending in opposite directions from the segment andarranged so that when one arm of the segment is moved rearwardly theother arm of the same will be moved forwardly.

2. In a device of the class described, the combination with a back orbody rovided with a spindle, of a plurality of lea turning arms havingtheir lower ends bent forwardly and provided. with heads arranged on thesaid spindle, a plurality of pinions also mounted on the said spindle, aseries of nested tubular shafts arranged on the spindle and connectingthe heads and the pinions, a second spindle or shaft mounted on the saidback or body, and toothed segments mounted on the last mentioned shaftor spindle and meshing with the said pinions, each segment beingprovided with a pair of operating arms rigid with and extending inopposite directions from the segment and arranged so that when one armof the segment is moved rearwardly the other arm of the same will bemoved forwardly.

3. In a device of the class described, the combination of a plurality ofleaf turning arms, a series of nested shafts carrying the arms andconsistin of an inner supporting spindle and a plurai ityof sleeves ofdifferent lengths and diameters, pinions mounted on the spindle and thesleeves, a pivot located in advance of the pinions, toothed segmentsmeshing with the pinions and having sleeves mounted on the said pivot,and opposite operating arms extending from the segments and movablebackwardly and forwardly in reverse directions, so that one of theoperatcombination with a back or body, of a bracket mounted on the backor body and provided with front and rear spindles, a series of nestedtubular shafts mounted on the rear one of said spindles, a plurality ofleaf turning arms provided with heads secured to the upper ends of thenested shafts and arranged above the bracket, pinions arranged withinthe bracket and mounted on the nested shafts, toothed segments mountedon the front spindle and meshing with the pinions and each, providedwith a pair of operating arms rigid with and extending from oppositesides of the segment, so that when one arm of the segment is movedrearwardly the other arm of the same will be moved forwardly, andsleeves also mounted on the front spindle and s acing the segments.

In testimony, that I claim the'foregoing as my own, I have heretoaffixed my signa ture in the presence of two witnesses.

AL H. LAMB.

Witnesses JOHN A. DINSMORE, A. R. RoeERs.

